174740-44-4 AIDS-033483 AIDS033483 Betulinic acid NH-DodecCOOH deriv. N-[3.beta.-Hydroxylup-20(29)-en-28-oyl]-13-aminotridecanoic acid Tridecanoic acid, 13-[[(3.beta.)-3-hydroxy-28-oxolup-20(29)-en-28-yl]amino]-